Machine for drawing coke.



PATBNTED Q, 1905.

1 D. BUPPUM.

MACHINE FOR DRAWINGCOKE. APPLICATION FILED APR. 20, 1904.

7 SHEETS-SHEET 1.

F. D. BUFFUM MACHINE FOR DRAWIN COKE.

APPLICATION FILED APR. 26. 1904.

PATENT ED APR. 4:, 1906.

F. D. BUPPUM. MACHINE FOR DRAWING COKE.

APPLICATION FILED APR. 26, 1904,

7 SHEETS-SHEET 3.

PATENTED APR, 4, 1905.

F. D. BUPFUM. MACHINE FOR DRAWING COKE.

APPLICATION FILED APR. 26.

7 SHEETSSHEET 4.

$2 Wen it: i"-

m PM Q L 49 M a; AHUN La 9 No. 786,623. PATENTED APR. 4, 1905. 1?. BUFFUM. MACHINE FOR DRAWING COKE.

API-LIGATION FILED APR. 26. 1904.

7SEEETS--SHEET s.

@ Wag/a.

PAI'EUTED APP. 1, 19059 P, D. BUPFUM. MACHINE FOR DRAWING COKE.

APPLIOATION FILED APR. 26, 190.

7 SHEETSSHEET 6.

PATENTED APR. i, 1905.

F. D. BUPEUM. MA UHINE PGR DRAWING COKE.

SHEETS-SHEET APPLICATION FILED APR, 26, 1904 no. reacts.

Unites States FREDERICK D. BUFFUM, OF DEVJTON, MASSACHUSETTS.

WEAQHENE DHQWENGE GGKE:

SPECIFICATION forming part of Letters Patent No. 86,623, dated April 4, Application filed April 26, 1904. Serial lit. SIG L957.

To all who/it H H'MI/I/ concern.-

Be it known that l, FREDERICK D. Bnrrnn, of Newton, in the county of Middlesex and State of Massachusetts, have invented certain new and useful lm1'wovementsin Machines for Drawing Coke, of which the following is a specification.

This invention relates to mechanism for drawing coke from coke-ovens: and the object of the invention is to provide an apparatus of this character by means of which the coke in the oven of a well-known type may be removed by means of a shovel which can be run into the solid mass of coke in the even, then withdrawn full of coke. and then dumped by a partial or complete rotary motion into a skip or basket which may be hoisted to dump the coke into a chute, from which the coke may slide by gravity to a suitable point for loading into cars.

Some of the particular objects of the invention are to provide means for lighting the ovens during the removal of the coke; providing a shovel with removable teeth which can be taken off for sharpening or renewal; providing a shovel which may be swung so as to act upon the coke practically at any point upon the floor ot' the oven; the provision of means, such as bushings, for keeping the shovel straight during its operations; the provision of means for taking up the thrust of the gear which drives the shovel; the provision of means for raising or lowering the shovel relative to the floor of the oven and for changing the vertical angle at which the shovel is projected; the provision of an inclined track or support for the machine to resist thrust of the shovel; the provision of improved means for driving the machine along the track; the provision of means for elevating the coke after its removal from theoven and transferring it. to a coke-yard by means 01' a gravity-chute; the provision of a cab for protecting the operator of the machine; the provision of im proved means for supporting the trolley-wire which supplies the electric current for operating the machine.

Other minor objects of the invention will become apparent in connection with the detailed description hereinafter.

To these ends the invention consists in the construction and combination of parts sul stantially as hereinafter described and claimed.

f the accompanying drawings, Figure 1 represents what may be best termed an end elevation of the machine, since the view looking in thedirection of the path which the machine takes in traveling from one cokeoven to another. Said iiguro illustrates also an oven of a series in vertical section. Fig. 2 represents a plan view of the machine, portions of a series of coke-ovens being represented in dotted lines. Fig. 3 represents a front elevation of the machine looking from the right of Fi s. land 2. Fig. i represents, on a somewhatlargerscale than Figs. 1 and 2, ado tail vertical section through substantially the center of the machine. Fig. 5 is an elevation looking from the left of Fig. t with theshovelhandle and a portion of the frame in section. Fig. 6 is a detail view, partly in section, of a portion of the stationary carriage-frame. Fig. 7 is a plan view of the portions of the apparatus shown in s. Fig. 8 is a detail view, partly in section, on line 8 8 of Fig. 5 of a portion of the shovel-manipulating mechanisn Fig. 9 is detail view, on a slightlylarger scale than Fig. of portions of the apparatus for hoisting the cokebncket to discharge the coke into the final delivering-chute. Fig. 10 is a detail View 01 a portion oi the hoistii'ig-bucket and a sectional view of the guides of the tower. Fig. 11 is a detail view of a portion of the apparatus shown in Fig. and looking from the left of said Fig. 9. i i 12 represents a detail section on the line 12 2 of Fig. 1, but on a larger scale. Fig. 13 a section on the line 13 13 of Fig. 14c. Fig. i l; represents a detail side elevation of a portion of the shovel-handle, showing the gears for turning the shovel, in section. Figs. 15 and 16 are respectively a section and a side elevation of the shovel-handle. Fig. 17 is a sectional view of the internally-threaded gear which is driven by the motor to advance and retract the shovel. Fig. 18 represents the two bushings for the shovel-handle, the latter being shown in section. Fig. 19 is a side elcvation of one of the bushings looking from the outer side thereof. Fig. 20 is a perspecshovel swing in order to vary the' angle at which the shovel will operate in an oven in a manner and by mechanism hereinafter de scribed. It will be readily understood that rotation of the shaft 59 will, through the pinion and gear 58 and 57, cause the shovel-handle and shovel to oscillate or rotate.

As shown by comparing Figs. 3, 4, 7, 8, and 9, the shovel 39 is angular in cross-section, the bottom of the shovel being flat and the sides being at an angle to said bottom. The front or operating edge of the shovel is straight, so that it can be moved along the bottom of an oven and work under the coke to lift it, the angular sides of the shovel serving to retain the coke on the bottom of the shovel. Moreover, owing to the operating edge of the shovel (whether teeth are employed or not) being substantially straight, the coke may be pried or broken away from the floor of the oven by the turning or oscillating movement imparted to the shovel. In other words, the front or operating bottom edge of the shovel is straight or flat in contradistinction to a curved shape in cross-section.' As will beunderstood, the oscillation or turning movement imparted to a shovel curved in cross-section or at the front edge thereof cannot be utilized to dislodge coke so as to force or pry it upward from the bottom of the oven.

An upperbearing for the shaft 59 is shown at 61, said bearing being supported upon a suitable portion of the carriage-frame. Above said bearing 61 is a worm-wheel 63, secured to the shaft 59 by means of a key 62. Said worm-wheel is engaged by a worm 64, (see mounted in bearings 66 66. One end of the shaft 65 is provided with a spur-pinion 67, the teeth of which are engaged by the teeth of a spur-gear 68, the hub of which is formed with a clutch member 69. The gear 68 is carried by the shaft 70, mounted at one end in a bearing 71. The other end of theshaft 7 O is connected by the flange-coupling 72 with the shaft of a motor 73. It will now be understood that the motor 73 is employed for rotating the shaft 59, so as to effect partial or complete rotation of the shovel. Power is obtained from the same motor 73, however, for other purposes, as will be hereinafter described, one of which is to elevate a verticallyadjustable portion of the carriage-frame, so as to bring the shovel into proper position vertically to operate in the oven by mechanism hereinafter described.

Referring to Figs. 4, '7, and 8, 74 indicates a thrust-plate against which the internallythreaded gear 42 abuts. Bolts 7 7 5 connect the thrust-plate 74 with the cross-piece 76 of the guide Referring to Figs. 1, 2, 4, and 7, 78 indicates a bevel friction-gear on the shaft of the motor 45. Said gear is adapted to be engaged by either one of two bevel friction-gears 79 79, splined upon a shaft 80, which is mounted in bearings 81 81, bolted to the rear end of the guide 40. Upon one end of the shaft 80 is secured a sprocket 82, (see Figs. 4 and 7 connected by a chain 83 with a sprocket 84 upon a shaft 85, mounted in suitable bearings and having a worm 87. (See Figs. 3, 4, 5, and 8.) Said worm meshes with a worm-wheel segment 88, secured to the under side of the guide 4O by means of cleats 89. (See Fig. 4.) These cleats serve to prevent the guide 40 from being tipped up at the rear when the shovel is advanced and loaded with coke should the weight of the said guide and the parts carried thereby be not sufficient to prevent such tipping. Through the mechanism just described the guide 40 and the parts carried thereby, including the shovel, are swung or adjusted about the centering-stud 40 to vary the angle at which the shovel will enter and operate in an oven. The sleeve carrying the frictiongears 79 is shifted by means of an arm 90, (see Figs.'5 and 7,) said arm being mounted upon a screw 91, journaled in the brackets which support the bearings 81. By rotating the screw 91 the sleeve 90 may be shifted to cause either one of the friction-bevels 79 79 to engage the friction-bevel 78. The screw 91 is provided at one end with a sprocket 92, which. by means of a chain 93, (see Figs. 5 and 7 is actuated by a sprocket 94 on the hub of a hand-wheel 95, mounted on the shaft 96.

It will now be understood that the shovel 39 may after being brought to proper position vertically and laterally opposite an oven be projected into the oven and forced against Figs. 4 and 12,) the shaft of which is the mass of coke 31 therein, and when in such position the shovel may be oscillated or partially rotated, so as to break up the coke. Continued advancement of the shovel will result in filling it, after which the shovel will be withdrawn to the position shown in Figs. 1 and 2. Then it will be oscillated to the position shown by dotted lines in Fig. 9, so as to dump the coke into the hoisting bucket or skip 100. In order that the coke may be guided from the shovel into the bucket 100, i may employ a tilting chute 98, pivoted to the operators platform, as at 99, said chute being adapted to be thrown or turned by the foot or hand of the operator from the full-line position shown in Fig. 9 to the dotted-line position, or return. Nhen in the full-line position, it will cause the coke which has been dumped thereinto to slide into the bucket. By throwing it to the dotted-line position any coke remaining therein will be thrown into the bucket.

I will now describe the means for elevating the bucket, so that the coke deposited therein may be raised and caused to deposit the coke into the upper end of a delivering-chute 105. The bucket is provided at each side with rollers 1'01 and 102. he rollers 101 are mount ed on the ends of a shaft 132, which extends through the side walls of the bucket, and the rollers 102 are mounted on the ends of a shaft 133, mounted in bearings 131, projecting from the rear of the bucket. 1he said rollers are adapted to engage suitable flanges of the hoist- Eng-tower 105, as shown in Figs. 9, 10, and 11. Near the rear of the bucket are eyes 103, to which are connected hoisting-ropes 104;, which pass over hoisting-drums 106, secured to the worm-wheel shaft 110. (See also Fig. 3.) The shaft has a worm-wheel 109 secured to it, said shaft being supported in bearings 111. (See Fig. 2.) The worm-wheel 109 is driven by a worm 112 on the shaft 113, mounted in bearings 111. (See 3 and 9.) Secured to said shaft 113 is a sprocket 115, connected by a chain 116 with a sprocket 117 on the shaft 118, mounted in bearings 11E), suitably supported by the frame of the machine. Said shaft 113 is provided with a bevel-gear 120,

meshing with a lmvel-gear 121, (see Fig. 12,) the shaft 122 of which is mounted in bearings 123. A sleeve 125 on the shaft 122 is provided with two friction-bevels 121 121, adapted when the sleeve shifted to alternately engage a friction-bevel 126 on the end of shaft 70. it will now be urulerstood that by engaging one or the other of the bevels121 121- with the 'lriction-bcvel 126 on the shaft 70, which is actuated by the motor 73, the drums 106 will be rotated in one direction or the other to raise or lower the bucket 100. As the bucket moves upward it retains its horizontal position until it reaches nearly the upper end of thehoisting-tower 105. Two guides 107 and 103 (see Figs. 3, 9, and 11) are secured at the upper portion of the hoisting-tower, said guides being formed with track-flanges adapted to take the traction of the rollers 101 and 102 as the bucket moves upward, so as to cause said bucket to lirst project its end over the upper end of the delivering-chute 105 and to then oscillate to the position shown by dotted lines in Fig. J to discharge the coke into said chute. in order to shift the sleeve 125, as hereinbelore mentioned, the said sleeve is provided with an arm 127, (see Fig. 3,) connected by a rod 128 (see Fig. 2) with a bellcrank 12%), having a rod 130, (see Fig. 3,) connecting it with a hand-lever 131. (See Figs. 2 and Referring now to Figs. 2, 3, 5, and 12, particularly Fig. 3, 1 will describe the means for propelling the apparatus along the rails 38. The rear end 70 of the shaft of the motor 73 is supported in a bearing 141-3., supported by a suitable bracket. ()n the shaft 7O are bevelpinions 135. Between said pinions is a double clutch 136, splined on the shaft 70, the clutch-faces being adapted to cooperate with mating clutch members carried by the hubs of the pinions 135. The double clutch 136 is provided with a ring 137, which is engaged by the yoke 133, carried by the rockshaft 139, said rock-shaft having lever 1410, connected by a red 1 11 with a handl.ever 1 12. A vertical shaft 1 1 1 mounted at its upper end in a step-bearing in the bracket of the bearing 1 13 and at its lower end is mounted in a bearing 1 16. The shaft 111 has a bevelgear 145, engaged by the bevel-pinions 135, and therefore the shaft 141 will be r tated in either direction, according to which pinion 135 is clutched to the motor-shaft 7 0. Below the bearing 146 the shaft 114 is provided with a bevel-pinion 1 17, meshing with a bevel-gear 1&8 on the shaft 150, mounted in suitable bearings 151. (See Fig. 1.) The shaft 150 is provided with spur-pinions 152, meshing with spur-gears 153 on the axle 154. of one pair of the wheels 37.

Referring particularly to 6 and 12, the outer or stationary part of the carriageframe is indicated at 160. Inside of the portion and vertically adjustable relative thereto, as presently described, is the suspended part 161 of the carriage-frame. This portion 161 supports the mechanism for actuating the shovel, and said portion of the frame is vertically adjustable in order to bring the shovel to the proper height for entering an oven. Four suspension-rods 162 are secured at their lower ends by pins 163 to the frame 161. As shown in Figs. 1, 2, 3, 1, 5, and 12, the upper portions of the rods 162 are screwthreaded, and upon the screw-threaded por tions are fitted bevel-gears 162*, which act as nuts to secure the suspension-rods and the suspended part of the carriage-frame in the desired vertical position. The bevel-gears or nuts 162 rest on supports 163 of a part of the frame. The nuts 162 are engaged by bevelpinions 16& at the ends of two shafts 165, mounted in bearings 166. Each shaft 165 is provided with a sprocket 167, connected by a sprocket chain 163 with a sprocket 169, mounted on the shaft 70 and adapted to be connected with said shaft, so as to be driven thereby by means of a clutch member 170, adapted to be engaged by the clutch 69. These clutches may be independently controlled by suitable levers, so that either one shaft or the other may be actuated so that the suspended part of the carriage-frame may be elevated more at one side than the other, so as to vary the angle of the shovel and its handle relatively to the floor of the oven to be operated upon. it will now be understood that when a given elevation of the shovel has been obtained it may be inclined upward or downward, so as to operate exactly level with the floor of the oven or to work upward therefrom or downward thereupon at an angle relatively to the floor of said oven. in Fig.

e1 the side members of the fixed part of the carriage-frame are indicated at 17 5, the crosschannels of the suspended table or portion of the carriage-frame being indicated at 176.

Suitable controllers for the motors are indicated at 177 and 17 8 in Fig. 3., said controllers being mounted on the floor or platform 181 for the operator. Thereof 179 of the operators cab and the end 180 thereof are indicated in Figs. 1 and 3. As will be seen, the delivery-chute 10-5 is above the roof or the cab.

Referring to Fig. 1, anincandescent lamp is indicated at 182, said lamp being adapted to be placed in or through the charging-holeof the oven to enable the operator of the machine to properly inspect the progress of the work of the shovel within the oven. Said lamp is shown as supported by a pulley 183, the pulley being supported upon. a cord 1841. Supported in brackets or bearings 19s and 195, attached to the frame of the machine, is a leg or pivot 193, having a bracket-arm or runway 18?. A support for the outer end of the arm or runway 18? is shown at 188. Mounted on the runway 187is a roller or trolley 185.. The position of this trolley lengthwise of the runway 187 is controlled by a cord 189, extending over a pulley 190 at the outer end. of the runway and a pulley 191 at the inner end of the runway, the ends of said cord 189 being connected to the trolley 185. The cord 18 1, which supports the incandescent lamp, is secured at one end to the outer end of the runway, extends under the pulley 183 of the lamp, then over a pulley suspended from the trolley 185, then over the pulley 191., and down to a fastening-cleat 186. The lamp-bracket comprising the leg 193 and the runway 18? may be swung about the axis of the leg 193 by means of a handle 196. it will now be understood that the position of the lamp 182 may be varied to any extent to meet the requirements as to its location relatively to the machine, so that it may be properly suspended within or lowered through the chargirig-openingoi the oven.

Having described the operations of the several parts of the mechanism in connection with the description of the construction of.

such mechanism, a further description of the operation of the machine will not be necessary.

1 claim 1. A coke-drawing machine comprising in its construction a shovel having a Hat bottom and mounted so as to be rotated or oscillated on an axis extending lengthwise of said shovel, means for reciprocating the said shovel, and power mechanism for turning it on said axis.

2. A coke-drawin machine comprising in its construction a shovel, means for reciproeating said shovel, means for varying the angle of the reciproeations relatively to the frame of the machine, and means for turning the shovel.

3. A coke-drawing machine comprising in its construction a shovel, means tor reciprocating said shoveha basket,and means whereby the shovel may be turned when within the oven to loosen the coke, or when withdrawn from the ovento dump coke into said basket.

1. A coke-drawing machine conmrising in its construction a shovel, means for recipro eating said shovel, a basket, and means where by the shovel may be turned when within the oven to loosen the coke, or when withdrawn from the oven to dump coke into said basket, means being also provided for hoisting the basket to a suitable point for delivery.

5. A coke-drawing machine compr' its construction a shovel havingastra it op erating edge and mounted so as to be rotated or oscillated on an axis extending lengthwise of said shovel, power mechanism for reciproeating and turning the shovel, and means for vertically adjusting the plane of the reciprocations of the shovel.

6. A coke-drawing machine comprising in its construction a shovel, means for reciprocating the shovel, means for vertically adjusting the plane of the reciprocations or the shovel, and means for varying the angle of said plane.

7. A coke-drawing machine having a shovel angular in cross-section and mounted to oscillate on a longitudinal axis, power mechanism whereby the shovel may be turned to pry coke from the bed of an. oven, and means whereby the shovel may be actuated to lift and remove from the oven coke so pried up.

8. A (.OlfiG-ClltlWlllg machine comprising in its construction a shovel having handle provided with teeth, an internally-threaded rotary actuator for said handle, and means for rotating said actuator.

9. A coke-drawing machine comprising in its construction a shovel having a handle provided with teeth, an internally-threaded rotary actuator for said handle, means for rotating said actuator, and means whereby the said handle may be turned without disturbing the connection between its teeth and the internal threads of said actuator.

10. A coke-drawing machine comprising in its construction a shovel having removable teeth at its front edge, and means for reciprocating said shovel.

11. A coke-drawing machine corny ising in its construction a shovel angular in cross-sec tion, and mounted to oscillate on a longitudinal axis, power mechanism for turning the shovel on such axis, means for reciprocating said shovel, and means for swinging the sh vol about a substantially vertical axis.

12. A coke-drawing machine comprising in its construc tion a reciprocatory shovel, guide therefor, and bushings for retaining the shovel in proper position relatively to the guide.

13. A coke-drawing machine cr'n'nprising in its construction a reciprocatory shovel, a guide therefor, and bushings for retaining the shovel in proper position relatively to the guide, the said bushings being rotativeiy sinpported in said guide to permit the shovel to be turned.

14:. A coke-drawing machine com )rising in its construction a shovel having a toothed has.-

dle, an iiiiternallv minded gear the threads of which engage the teeth oi the shovehhandle means for rotating; said gear, and a thrust plate against which said gear abuts.

if It colic-drawing machine umunted on wheels and an ii'ielii'ied traekwaq; to enahle the n'iachine to resist the thrust oi the eoke- (thawing implement.

16. A coke-drawing maehine comprising in its construction a shovel and means for reciprocating said shovel, the said machine being mounted upon wheels, rails being; provided for said wheels the rail under tl at side of the machine from which the shovel projects being lower than the other rail whereby the traclnvz'ty formed by said rails will resist the thrust oi the shovel.

- 1?. A CUhG-(ll'iHVillg' machim s comprising in its construction a shovel, means for recipro eating and turning the shovel whereby the shovel may he caused to lift and witlulraw and discharge coke, and, conveying mechanism for receiving the coke tron: the shovel ailer the laltcr has \vijtlulrawn it from a '5 oven.

18. A colce drawing' machine conn'n'ising in manna its construction a shovel, means for reciprocating and turning the shorol, a receptacle adapted to receive the coke from the shovel, means for elevating said receptacle and a chute for receiving the coke from said receptacle when the latter is raised, means being provided for tilting said receptacle at the upper portion of its movement to cause the coke to slide therefrom to the chute.

20. A ccdce-draxving machine comprising carriage, i'neans supported by said carriage for acting" upon the coke in any one of a series of ovens and for withdrawing the coke thereilronn a platform on the carriage for the operator, and a cab structure above said platform, the *arriage having. also a coho-elevator and a chute for receiving the coke from said elevator, the said chute extending over the root oi the cal) structure.

21. The combination w th a series of cokeovena of a traclcway along the front of said ovona a series of supports projecting from the upper portion of the front wall a plank connected with said supports, a trolley-wire below said plant; and a coke-drawing machine mounted on and movable along said traeliway and having a trolley fo said wire.

in testimony whereo'l i have aii'ixed my sis;- nature in presence oi two witnesses 

